microlite

Mi"cro*lite, n. Etym: [Micro- + -lite.] (Min.) 1. A rare mineral of resinous luster and high specific gravity. It is a tantalate of calcium, and occurs in octahedral crystals usually very minute. 2. (Min.) Defn: A minute inclosed crystal, often observed when minerals or rocks are examined in thin sections under the microscope.

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